Hydrocarbon-burner.



B. A. THOMAS.

HYDROCAHBON BURNER.

APPLICATION men FEB- 23. 1915.

Patented June 15, 1915.

WITNESSES:

THE NORRIS PETERS co, PHOTO-LITHQ. WASHING TON 1:.

barren PATENT OFFTGE.

BRADFORD A. THOMAS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALFTO JAMES BROWN, OF SAN FRANCISCO, CALIFORNIA.

HYDROCARBON-BURNER.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed February 23, 1915. Serial No. 9,861.

To all whom it may concern.

Be it known that I, BRADFORD A. THOMAS, a citizen of the United States,residing in the city and county of San Francisco and State ofCalifornia, have invented new and useful Improvements inHydrocarbon-Burners, of which the following is a specification.

This invention relates to a hydrocarbon burner.-

One of the objects of the present invention is to provide a simple,substantial, easily installed hydrocarbon burner adapted for use inconnection with cook stoves, ranges or the like, and which isparticularly constructed and arranged to handle low-grade fuel oils,such as distillate, or the like.

Another object of the invention is to provide a novel form of generatingchamber in which the oil is vaporized before it is admitted to thecombustion chamber, and also to provide a novel form of discharge nozzleby which the flame or discharge of gas may be regulated.

Further objects will hereinafter appear.

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, havingreference to the accompanying drawings, in which Figure l is a centralsection of a furnace box showing the burner installed. Fig. 2 is anenlarged central section of the main generating tube and burner nozzle.Fig. 3

is a cross section on line 33, Fig. 2; Fig.

4c is a bottom view of Fig. 3.

The burner consists of a pair of connected generating tubes 2 and 3 towhich oil is admitted and regulated by a valve 1. The oil is firstadmitted to pipe 2 where it is partly vaporized, and this vapor isconveyed by a pipe 5 to the main generating tube 3. The main generatingtube consists of a pipe section 3, interiorly of which is mounted a pipeor tube 6 of smaller diameter. This inner pipe isperforated, asindicated at 7 and is spaced with relation to the exterior pipe by meansofa pair of caps 8-8, one being placed at each end of the pipe-6;

One of the caps is perforated, as indicated at 9, and the vapor admittedfrom pipes 2 and 5 is permitted to enter pipe 6 through opening 9 and ishere further transformed formed between pipes 3 and 6. The inflammableproduct is here entirely completed and is discharged through a nozzle,generally indicated at A, in the following manner: The discharge nozzleconsists of a casing 11 through which pipe 3 extends. A chamber 12 isformed in the lower end of this casing and an opening 13 formed in pipe3 permits the gas in the annular chamber 10 to escape into the chamber12. A cap 14 turnably mounted on the lower end of the casing 11 forms avalve by which the discharge of gas'from chamber 12 is regulated andcontrolled.

An opening 15 is formed between chamber 12 and cap let and this openingis adapted to be brought into communication with a plurality of openings16 formed in the cap. These openings are graduated in size and theturning of the cap permits the volume of gas discharging to be regulatedin this manner. The cap 14 is secured on the end of the casing 11 bysecuring thereto a forkshaped strap 17 which straddles pipe 3. Aset-screw 18, passing through the strap or bail' and engaging a socketin the top of the casing, permits the cap and strap to be turned bymeans of a socket wrench or like means.

Mounted in the furnace, below the nozzle A, is a baffle or deflectingplate 20. This plate covers pipe 2 and prevents same from becomingoverheated. It also serves as a means to direct the flame in the desireddirection.

A burner constructed and arranged in the manner shown is particularlycapable of handling low-grade fuel oils, such as distillate, and thelike, as the oil is gradually heated and transformed before it isdischarged through the burner nozzle. The gradual heating andtransformation provided iii this instance practically eliminatescarbonization at any point and what little the end cap 21' and removingthe inner generating tube 6.

The graduated discharge openings formed in the cap 14 permit a flamearea of practically any size and, furthermore, permits two or more ofsaid nozzles to be mounted on one pipe and controlled by the singlevalvei, as the discharge opening 15 may be entirely closed by turningthe cap into an intermediate position. Thus two or more nozzle burnersmay be mounted on the same generator and one or any number ofsame may beturned off or in use. The provision of the baffle plate 20 prevents thelower or primary generating tube from becoming over heated, thuspreventing carbonization at this point.

The materials and finish of the several parts of the hydrocarbon burnerare such as the experience and judgment of the manufacturer may dictate.

I wish it understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims, and that I do not wish to limit myself to the specificdesign and construction here shown.

Having thus described my invention, what I claim and desire to secure byLetters Patent is- 1. A hydrocarbon burner comprising a horizontalgenerating tube, a concentric inner tube of smaller diameter formingwith the outer tube an annular generating chamber, said inner tubehaving equally spaced openings through which a regulated flow isdistributed from end to end of the inner tube, a burner nozzle includinga vertical casing through which the generating tubes pass, said casinghaving a chamber below the generating tube, a passage from said tube tothe casing chamber, a cap turnably mounted on the bottom of said nozzlechamher having a plurality of graduated discharge openings, and means toturn said cap to control said openings and regulate the discharge. 1

2. A hydrocarbon burner comprising a generating tube, a nozzle casingthrough which said tube extends, said casing having a. chamber formedtherein and a discharge opening, and said generating tube having anopening formed therein communicating with the chamber and dischargeopening in the nozzle casing, a cap having a plurality of graduatedopenings formed therein mounted on the nozzle casing, a. bail secured tothe cap and extending over the nozzle casing, a plvot screw extendingthrough the ball and engaging with the nozzle casing to secure the capon the nozzle, said screw also forming a means for turning the bail andcap to bring any one of the graduated openings in the cap into registerwith the discharge- Goples of this patent may be obtained for five centseach, by addressing Washington, D. 0.

opening in the nozzle casing, and means for admitting oil to thegenerating tube.

3. A hydrocarbon burner comprising a generating tube, a nozzle casingthrough which said tube extends, said casing having a chamber formedtherein and a discharge opening, and said generating tube having anopening formed therein communicating with the chamber and discharge.opening in the nozzle casing, a cap having a plurality of graduatedopenings formed therein mounted on the nozzle casing, a bail secured tothe cap and extending over the nozzle casing, a pivot screw extendingthrough the bail and engaging with the nozzle casing to secure the capon the nozzle, said screw also forming a means for turning the bail andcap to bring any one of the graduated openings in the cap into registerwith the discharge opening in the nozzle casing, a perforated tubeinteriorly of the generating tube and spaced therefrom to form anannular generating chamber, and means for admitting and regulating aflow of oil to said tube.

4. A hydrocarbon burner comprising a generating tube, a nozzle casingthrough which said tube extends,said casing having a chamber formedtherein and a discharge opening, and said generating tube having anopening formed therein communicating with the chamber and dischargeopening in the nozzle casing, a cap having a plurality of graduatedopenings. formed therein mounted on the nozzle casing, a bail secured tothe cap and extending over the nozzle casing, a pivot screw extendingthrough the bail and engaging with the nozzle casing to secure the capon the nozzle, said screw also forming a means for turning the bail andcap to'bring any one of'the graduated openings in the cap into registerwith the discharge opening in the nozzle casing, a perforated tubeinteriorly of the generating tube and spaced therefrom to form an annular generating chamber, a second generating tube mounted below thefirst named generating tube and connected with said tube and theperforated tube interiorly thereof, and meansfor admitting andregu-'lating a flow of oil to the second generating tube. V

In testimony whereof I have hereunto set my hand 1n the presence oftwolsubscribi'ng wltnesses.

' BRADFORD A. THOMAS.

Witnesses:

JAMES BROWN, A. J. HENRY.

the "Commissioner of Patents,

